#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<string.h>
#include<math.h>
#include<windows.h>
int main() {
    /*int a = 0;
    int b = 0;
    int c = 0;
    int i = 0;
    int j = 0;
    int n = 1;
    int sum = 0;
    scanf("%d", &a); 
    b = a;
    while (b / 10 != 0 ) {
        n++;
        b = b / 10;
    }
    for (i = 0; i < n-1; i++) {
        b = 1;
        for (j = 0; j < n - i-1; j++) {
            b = b * 10;
        }
        sum += (a / b) * (a % b);

    }
    printf("%d", sum);*/


    /*int a = 0;
    int b = 0;
    scanf("%d%d", &a, &b);
    int c = 0;
    c = a%100 + b%100;
    c = c % 100;
    printf("%d", c);*/


    return 0;
}
